Revoloft™ polyester staple fiber is a state-of-the-art cluster fiber fill engineered to provide our classic luxury feel while remaining resilient over time. Revoloft™ cluster fiber is a ultra high performance hollow conjugate siliconized fiber. Revoloft™ fiber has a cross-section that drives each strand to deliver a high-loft balance, superior fill power, as well as strength and durability. Not only is Revoloft™ fiber well known as an industry standard, but it's produced on the newest and most up-to-date fiber production lines in the world. Strive for a better fiber and better luxury with Revoloft™.